I have a 2017 ram 4x4 11000 miles so far. Havenít got over 15mpg yet, just got back from falcon pulling my buddies z21 average mpg 6.7 . I get 7.2 pulling my basscat cougar. Filled up 4 times in 500 miles . Thinking of trading it in for a Diesel my 15 ram got about the same. I do pull 70-75 mph

Thank you for your honesty.

If people would post a video including what they are towing and where then point the camera at the instrument cluster for the rest of the drive I think it would be very enlightening. Driving habits are a huge part of fuel economy. Ive never done over 5000 rpm in any vehicle I have owned. I know several people who see 5k several times a day. Naturally I get much better fuel mileage, my tires, transmission, and in general vehicle lasts longer too.

If you took the picture with your phone then screen shot the picture and retry. For whatever reason iphones save pictures as a file format other than jpeg, but the screen shots are in a format that can be posted.

I have a 2017 ram 4x4 11000 miles so far. Havenít got over 15mpg yet, just got back from falcon pulling my buddies z21 average mpg 6.7 . I get 7.2 pulling my basscat cougar. Filled up 4 times in 500 miles . Thinking of trading it in for a Diesel my 15 ram got about the same. I do pull 70-75 mph

10k on Tundra. I get 9-10 pulling boat on hwy and my boat is bigger and heavier with more wind resistance. Empty in get right around 17 may be little higher depending on speed with warmer temps and summer blend. Right now I am getting low 16s running 70-75. Since I have been back in a full size V8 I have found that they really suck the gas when sitting still and accelerating.

I'm sure you have the towing rear end. It's just nearly impossible to get good mpg when you're reducing speed that much before the wheels. Even with the 8-speed transmission, your top gear just isn't that good.

I have 3.55 in mine and with the tune, I'm now easily getting over 30 mpg on highway trips. Redchevy is the same way. Lenahorse has the 3.21 with his Hemi and is getting mid-20s. None of us can tow as much or as easily as you can though.

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Life can only be understood backwards; but it must be lived forwards. - Soren Kierkegaard

I have a 2017 ram 4x4 11000 miles so far. Havenít got over 15mpg yet, just got back from falcon pulling my buddies z21 average mpg 6.7 . I get 7.2 pulling my basscat cougar. Filled up 4 times in 500 miles . Thinking of trading it in for a Diesel my 15 ram got about the same. I do pull 70-75 mph

10k on Tundra. I get 9-10 pulling boat on hwy and my boat is bigger and heavier with more wind resistance. Empty in get right around 17 may be little higher depending on speed with warmer temps and summer blend. Right now I am getting low 16s running 70-75. Since I have been back in a full size V8 I have found that they really suck the gas when sitting still and accelerating.

I must have different gears in my Tundra. It's a 2015 4x4 crew max with the 5.7. It averages right at 12.9-13 normal driving at legal posted speeds. Gets around 10.9-11 towing a 19ft Skeeter at legal speeds. Never, ever gets better than 14-15 mpg.

I have a 2017 ram 4x4 11000 miles so far. Havenít got over 15mpg yet, just got back from falcon pulling my buddies z21 average mpg 6.7 . I get 7.2 pulling my basscat cougar. Filled up 4 times in 500 miles . Thinking of trading it in for a Diesel my 15 ram got about the same. I do pull 70-75 mph

10k on Tundra. I get 9-10 pulling boat on hwy and my boat is bigger and heavier with more wind resistance. Empty in get right around 17 may be little higher depending on speed with warmer temps and summer blend. Right now I am getting low 16s running 70-75. Since I have been back in a full size V8 I have found that they really suck the gas when sitting still and accelerating.

I must have different gears in my Tundra. It's a 2015 4x4 crew max with the 5.7. It averages right at 12.9-13 normal driving at legal posted speeds. Gets around 10.9-11 towing a 19ft Skeeter at legal speeds. Never, ever gets better than 14-15 mpg.

same gears if you have tow package. Problem might be right foot. Also, depends a lot on traffic. Open hwy and mine is good but when I get in stop and go traffic it falls off quick. Do have larger tires and lift?

Almost all Tundras with the 5.7 have the same 4.30 gears. If yours came factory with a hitch receiver and a place to plug in your trailer plug, then you have 4.30 gears. Great for towing, not so great for gas mileage.

_________________________
Life can only be understood backwards; but it must be lived forwards. - Soren Kierkegaard

For a long time I attributed the 5.7 tundras poor fuel mileage to the gear ratio, but a few years ago I compared the final drive ratio of every gear in a tundra to the current GM, ram, and ford offerings and there was not a big difference. The tundra 4.3 rear end is set up with higher rear ranges in the transmission so that in the end you wind up with a overall similar ratio to the competitors. In the end I think they have poor fuel economy because they are a 400 hp (or nearly) 4 valve per cylinder large (for the time period) displacement v-8. That engine is designed to burn fuel... and lots of it, that's how it makes its power. The others ram and gm with cylinder deactivation and ford with smaller displacement turbocharged engines give you a combination of power when you need it and economy when you don't. I would be interested to see a real world fuel economy test done with a Toyota 5.7, ford 5.0 and nisan 5.6. My bet is there wouldn't be a huge difference and at lighter loads the 5.0 would access due to smaller displacement but as you start stacking it on the 5.0 will join its buddies.

For a long time I attributed the 5.7 tundras poor fuel mileage to the gear ratio, but a few years ago I compared the final drive ratio of every gear in a tundra to the current GM, ram, and ford offerings and there was not a big difference. The tundra 4.3 rear end is set up with higher rear ranges in the transmission so that in the end you wind up with a overall similar ratio to the competitors. In the end I think they have poor fuel economy because they are a 400 hp (or nearly) 4 valve per cylinder large (for the time period) displacement v-8. That engine is designed to burn fuel... and lots of it, that's how it makes its power. The others ram and gm with cylinder deactivation and ford with smaller displacement turbocharged engines give you a combination of power when you need it and economy when you don't. I would be interested to see a real world fuel economy test done with a Toyota 5.7, ford 5.0 and nisan 5.6. My bet is there wouldn't be a huge difference and at lighter loads the 5.0 would access due to smaller displacement but as you start stacking it on the 5.0 will join its buddies.

My brothers 5.0 does worse on the hwy than my Tundra. His lift is a little taller. From what I have read at HWY speeds of 75 or so they are all pretty much the same.

Ecodiesel with a tune. Took a 500 mile trip to the ranch and back 65-70 mph 4 adults luggage for 3 days 500 lbs of feed 2 ice chests and 2 5 gallon igloos full of water. 32 mpg round trip love this truck.